Trip-hammer



A L Wu PEER.

VerticalTrip Hammer.

Patented Nov. 29, 1853.

N. PETERS, Phoeu-Ulhagmpher, washington. DVC.

JOHN iii-.PEER or SCHENEGTADY, ,New YORK.;v

TRIPfHAMMER..

Specicationof Letters Patent No. 10,274,y d ated November.29,.;18`5 3".,y

Toalrl `whom it may concern vBe. it known that I, JoniNk PEER, of;

Schenectady, inthe county. of, Schenectady and; State of Yew` York, have invented a new and` useful: Improvement. in Vertical Trip-Hammers; and I dov hereby declare that the following is a full, clear, and'exactdescription -of the same, reference being had toAV the accompanying drawings,l forming part of; this specification, in ,whichl Figure l, is a horizontal;l section of the hammer through the line a', w, in Figs. 2,

several figures indicatel corresponding parts.`V

'Ihe` nature offmy invention consists in raising and lowering the hammer by means.

offa screw cam arrangedy upon al circular platesecured fast on a revolving shaft, and connected to the helve of the hammer by means of a horizontal. lifting arm which has one of its ends attached fast to the hammer by set screws and its othery end sliding freely up and down over the vertical cam shaft as the hammer rises anol-v falls; said arm carrying a small friction roller which, as the cam shaft revolves, turns freely and plays upon the top of the screw cam and prevents friction from the weight of the hammer upon the cam as said hammer is gradually raised by the cam.

My invention consists, 2nd, in arranging the screw cam upon an adjustable frame so that it may be adjusted to any position desired and the length of the blow to be given to the hammer regulated, so that if a full or half blow be required, they may be secured.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction andv operation.

A represents the base or platform; B, the anvil resting upon the same; C, repre- Sents a standard secured to the platform; this standard supports the whole working mechanism of the hammer; the upper part of it forms a box or guide for the hammer to move up and down in as seen in Figs. 1, 2, and 3; the two vertical sides of this box being connected together at top by the cross piece a, and at the bottom in the manner shown in Figs. 2 and 3; the boX and standard are cast in one piece.

D, is the hammer.; it moves up and Clownin theguides, ,d; astseen in Fig.3.

E, is thescrew campit; is secured-on topl and nea-r the peripherywofa circulan-plate. F, and extends more than g half around itfas. seenfln Fig.- 1, The plate upon which itz rests is secured y fastl on the revolving-shaft; f

j G, T-.his cam.formsa gradual'incline in the.

line vof a screw, as .seen in .theQ-drawing-,its

lowest. end being almost.ona-.plane'zwith.the

topI surfacecf thecircular plate whileV itsn/ highest end, his, for ordinaryfsizedham mers, `placed-k about 10 ..inchejs 'above theaend- .0. The lower end of the shaft @Hof-,thisy cam restsI 1 in `the. step,4 d?, of an; adjustable frame, hereafter described, and extends vup and passes through the ear e, of` the. top l cross piece a,off` thestationaryframe.andtur'nsifreelyin the same; it carryingfadriv.- ing pulley vj, bywhich it` is set in motionthrougha bandl transmitting powerf; from thev engine or othermover. This. shaft is connected to the hammer bythe arm .VI-l, ,inf the mannerk shawn in the drawing, this arm has two collars g, on it; that gf,sliding: ;l freely-over the shaftl G, as the hammer risesv and falls, while that h, is fittedaroundgand secured fastito `thefhammer by seti screwor otherwiseyit isy by, thus securing-this armI fast to the hammer and loose on the cam shaft Gr, that the hammer can be elevated and depressechby the cam E.

I is a friction roller secured and turning loosely on the circular part z', of the arm`H, this roller is so situated that it first comes in contact with the top surface of the cam at the lowest point o, as shown in FigJQ, and then as the cam revolves gradually comes in contact with the highest points of the screw cam, simultaneous vwith which', the

friction roller, its shaft, and the hammer rise and 'assume the position shown yin Fig.

3. In this view the highest point b, of the cam is shown resting `under the Yfriction "10o i roller I, and. ready to be moved from under it, when which vis done the hammer falls to the position shown in black in Fig. 2, and the friction roller and arm fall into the open space, j, between the ends of the cam. By continuing to move the cam shaft, G,

the cam will again be brought under the.v

i are provided `with nuts, n, to keep them in place. The smaller portions 0, 0, of the screws K, K, are made plain for a short distance so as to slide through holes inthe ears, p, p, ofthe stationary frame, as the adjustable frame rises and falls. These screws have heads on their lower ends and are attached fast to the cross pieces, 1', s, of the adjustable' frame J, in the manner shown in Fig. 2, so that all can move together up and down.

L, is a spring barrel, attached fast to the top piece s, of the adjustable frame and arranged directly over the top of the hammer, and carries a ,spring M, for the ham- 1 mer to strike against in its upward movement. This spring accelerates the blows of the hammer. The end of the hammer passes into the barrel and compresses the spring through the plug t, attached to the same.

By examining Fig. 2, the utility in thus making the frame J, adjustable may be apparent.

It is well known that it is necessary sometimes to have a full stroke of the hammer, and at other times only a half stroke is required. Now by `vmaking the frame adjustable I can obtain any desired length of blow, for by raising the frame to the position shown in black lines in Fig. 2,

*the cam will be raised to its highest position, and its lowest end c, will rst, necessarily, come in contact with the friction roller on the'lifting arm, and the lifting of the hammer will commence at this point and terminate at the highest point b; `and consequently a full stroke'` of the hammer will be obtained. Now to obtain a half stroke the adjustable frame J, must `be lowered to the position shown in red lines in Fig. 2, this operation lowersA the camto the position shown in red in same figure, and

therefore when the cam is set in motion its' central point fw, will first strike the friction rollers seen inFig. 2, and the hammer will only kbe raised half the distance that it was when the camA occupied the position shown in black, and the friction roller came in contact with its lowest pointe. i

The advantage of this arrangement is its simplicity of action; its compactness, and

the peculiar construction and arrangement of the parts, render it more convenient for use and admits of the iron being turned` in every direction necessary.

What I claim as myv invention, and de` sire to secure by Letters Patent, is

The arrangement of the screw cam, E,

and the adjustablev table to which it is at" tached, for the purposes described.

` JOHN w. PEER.

Vitnesses:

JAMES WALKER,

ABM. A. VAN VoRs'r. 

